Power mechanism.



PATENTED MAY 22, 1906.

J. G. DUNKELBARGER. POWER MECHANISM.

APPLICATION FILED JULY18, 1905.

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PATENTED MAY 22, 1906.

J. G. DUNKELBARGER. POWER MECHANISM.

APPLICATION FILED JULY 13. 1905.

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. uPow Eh MEoHANism-L Specification of Letters Patent.

Patented May 22, 1906.

Application filed July 18,1905. Serial No. 270,257.

To all whom, it may concern:

Be it known that I, JOSIAH C. DUNKEL- BARGER, a citizen of the UnitedStates, residing at Cheneyville, in the county of Vermilion, State ofIllinois, have invented certain new and useful Improvements in PowerMechanisms; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make anduse the same.

This invention relates to power mechanisms, and more particularly topedaloperat ing mechanisms, and has for its object to provide amechanism of this kind which will be simple in arrangement and whichmaybe manufactured at a low figure.

Other objects and advantages will be apparent from the followingspecification,which describes an embodiment of the present invention.

In the drawings forming a portion of this specification,,and in whichlike numerals of reference indicate similar parts in the several views,Figure 1 is a side elevation of the present invention. Fig. 2 is a frontview. Fig. 3 is a top plan view. Fig. 4 is a detail perspective view ofone of the clutch mechanisms. Fig. 5 is a transverse section through theclutch mechanism on line 5 5 of Fig. 4.

Referring now to the drawings, the pres ent invention comprises a frameconsisting of horizontal sills 5, connected at their forward ends bymeans of a cross-bar 6 and having uprights 7 hinged to their rearwardends for movement longitudinally of the sills. Bracerods 9 are pivotedat their rearward ends to the upper ends of the uprights 7 and haveperforations 9 therein adjacent to their forward ends, arranged inlongitudinal series and adapted for interchangeable registration withsimilar perforations 10, formed in upwardly and forwardly slantedmembers 11, which are secured to the sills 5, it being thus seen thatthe braces 9 are adjustable to hold the uprights 7 at different anglesto the sills 5, confining-pins 12 being engaged in the registeringperforations 9 and 10.

Bearings 13 are formed in the uprights 7, and journaled in thesebearings there is a transversely-extending horizontal shaft 14, which issquared between its ends and upon which is mounted for rotationtherewith a larger sprocket-wheel 15 and a smaller sprocket-wheel 16,the two being secured together and being slidable longitudinally of theshaft. Outwardly of the uprights 7 ratchet-wheels 17 are mounted uponthe shaft 14, and these ratchet-wheels have drums 18 at either side oftheir ratchet-teeth 19, the drums being of lesser diameter than theouter periphery of the teeth.

Bands 20 and 21 are engaged with the drums 17 and 18, as shown, therebeing two pairs of these drums, one pair for each ratchetwheel. The endsof the bands of each pair are secured to levers 22, which extendforwardly, as shown. bands are dogs 23, arranged to engage theratchet-teeth 19 when moved forwardly and to slip thereover when movedrearwardly.

Forwardly-converging rods 24 are secured to the upper ends of theuprights 7 and have a forwardly-extending rod 25 secured to theirforward ends, this rod 25 having a transverse arm 26 at its forward endprovided with pulleys 27 at its ends. A cable is engaged with thesepulleys and has its ends secured to the levers 22, the arrangementbeingsuch that when one of these levers is moved downwardly the otherone will be moved upwardly. Adjacent to their forward ends the levers 22are provided with foot-plates 29, and it will be seen that the leversmay be moved to revolve the shaft 14.

A chain 30 is engaged with the sprocketwheel 15 and may be shifted fromone to the other of these connected sprocket-Wheels 15 and 16, asdesired, to produce different results, the chain being engaged with anoperative mechanism also, as will be readily understood.

It will be seen that movement of the uprights 7, as mentioned above,will move the shaft 14 and the sprocket-wheels carried thereby to varythe tension of the chain.

What is claimed is- A mechanism of the class described comprising aframe, a shaft j ournaled in the uprights, ratchet-wheels carried by theshaft,

Pivotedbetween the drums carried by the ratchet-wheels, bands engagedwith the drums, levers secured to the bands, dogs pivoted to the bandsand adapted for engagement of the ratchet-teeth for movement of theshaft therewith in one direction, connections between the levers, saidconnections bein arranged to move one of the levers in one directionwhen the other lever is moved in the opposite direction and asprocket-wheel mounted upon the shaft.

In testimony whereof I afliX my signature in presence of two witnesses.

JOSIAH O. DUNKELBARGER Witnesses:

O. F. DUNKELBARGER, RALPH MORGAN.

